Water-motor.



H. R. IRWIN.

WATER MOTOR.

APPLICATION FILED MAILIB, 1912.

Patented Aug. 27, 1912.

' ing' box 6, to prevent u urn s lllilsdhx EAIRRE IRWIN, OF FORT THOMAS, KENTUCKY.

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Specification of Letters Iatent.

Patented Aug. 27,1912.

Application filed March 18, 1912. Serial No. 684,434.

1 To all whom it may concern:

Be it known that I, HARRY R. IRWIN, s, citizen of the United States, and a resident of Fort- Thomas, Campheil and State of. Kentucky, have invented ce "n new and. useful Improvements in W ten-Motors, of which the follow ing; is s full, clear, and exact description, reference being had to the accompanying drawing, forming part of this specification.

ltzlly invention relates to water or fluid pressure meters of the reciprocating type for driving" light machinery, and the object of the invention is to provide a construcllOI; in which 2:. spring of comparatively large size may be employed for assisting the reversal at the valves at. the conclusion of each. stroke to reverse the action of the motor. At the same time, the construction is designed to economize the space for the spring and to enable me to provide a compound valve of comparatively large size, whereby the efficiency of the motormey be largely increased, and the operation may be insured for s large range of water pressures.

Uther features of novelty and advantage will be pointed out in the progress of the description and referred to in the claims.

in the drmving, Figure 1 is s central longitudinal section of my improved motor. Fig. 2 is a side elevation of the compound inlet and exhaust valve structure. Fig. 3 is on end elevation of the compound valve.

The motor cylinder 1 is formed of any convenient size, with a. head 2 at one end and a. valve casing 3 at the opposite end. The piston 4: is adopted to reciprocate in the motor cylinder under the fluid or Water pressure, and it, is provided with a piston rod c, which is formed with a. ruck, or other wise arranged to be suitably connected with the machine to be driven by the motor. This piston rod. is provided'with the usual stuffleskage as the piston is rcciprocsted. Mounted in the valve casing 3 at the opposite end of the cylinder and in axial alinenwntlwith the piston and piston rod is the conrpouiidinletand exhaust valve. This valve structure comprises a double puppet exhaust valve formed of disks 7, 8, connected loy Wings 9, 10, leaving the space between the disks hollow or open, and the outer edges of the wings forming a guide for the sleeve-1:7, which forms the double puppet inlet valve. This sleeve is provided in the countyof with a series of apertures 13 to allow pnssage of the fluid from the space between the wings on the exhaust valve into lhe'annu-- larpassageway 14- formed in the interior cylindricel casing 15, which surrounds the slec've 12 and in which the sleeve valve slides. The annular passageway 14-. is provided with a port 16 into the exhaust pipe 17.

Each end of the sleeve valve 12 is provided with a double valve seat 18, 19, at one end, and 20,21, at the other. The valve seats 18 and 20 have their bearings respectively on corresponding seats 22, formed in the respective ends of the casing, the seat- 22 being formed on the inner edge of the cap 24, which is screw-threaded into the ass ing and forms a part thereof, the cap be ing provided to permit the compound valve to he located in place. The inner seats 19 and .21 of the sleeve valve 12 have their bearing on the corresponding seats 25, 26, 0f the disks 7 and 8 of the'double puppet valve.

The valve disk 8 is provided with a short stem 27, upon which is screwed the hollow cap 28, provided with a central aperture through which passes a rod 29 with the head 30 of this rod secured. in the hollow cap. Upon the other end of the rod 29 and inside the two walls 31,.32, of the piston ere loosely mounted the two disks 33, 34. The disk 33 provided with a sleeve 35, projecting inwordly and loosely around the rod 25). The head 36 of the rod 29 engages the outer side of the disk 34, the rod passing through the two disks. A coiled spring 37 of comparatively large size is mounted between the two disks 33, 34, normally holding them in engagement. with the inner surfaces of the walls of the piston, while the piston is pro vided with the chamber 38 to receive this spring. The piston rod 5 is cored to form 1; space 39 so as to allow the rod 29 to extend into the piston rod when the piston is re versed.

'lhe W'iter or fluid under pressure is supplied to the motor through the inletpipe 40, and in the position shown in the drawions the water under pressure is entering the cylinder through the passageway 41, and has driven the piston to the right. The exhaust water from the opposite side of the piston passes out through the port. 42, ms sageway 43, alone the cylinder into the chamber 44: in the valve chest, and in the position of the valves shown in the drawseat into the sleeve valve 12, and out through rile openings 13 and the annular pussugew; y ll through the port 16 into the exhaust pipe 17 In this position,of the piston, the head 36 has just come inzcoritact with the disk 3%, and as the waterpressurc on the'inlet side of the piston is holding the valve disk 8 to its sent, the spring with further movement of the piston to the right is compressed, and under ordinary hlgh wet-er pressures the spring 37 compresses until the hub of the disk 34 comes in contact with the hub of the disk 33, in vvnich position the puppet valve 7, 8, is shifted the rod 29, the first movement csusing'the valve disk to seat itself on the seat 12 of the sleeve valve thus cuttingofi' the exhaust, and. at the same time shifting the valve disk 8 from its sent 21, allowing the water under pressure to escape into the sleeve valve 1:? and thence to the exhaust. The water un tier pressure in the cylinder, with the shifting; of valve dish 8 from its sent 931 then relieved, us this Wlilfil' has an outlet into the sleeve 12,.end out through the exhaust and thespiinufi! instantly shifts the disk 34 heck to its normal position and draws the sleeve valve to the right, thus closing-the inlet L1, and the passage between the valve seat 21 and 26 becomes the exhaust passageway for tlieformcr pressure side of the"cylinder while the inletwater passes into the valve chamber 44 and thence through the pessage-Way s and port 42 into the former exhaust side of the cylinder, reversing the movement of the piston. When the piston has moved to the left until the sleeve on the dish contacts with the head of the cap 28, the spring 37 is again compressed until the hubs of the disks 33 and Sal are brought in contact when the puppet valve is again shifted to close the exhaust port and the spring 3? returns the disk 33 to its not? moi position, returning the puppet and sleeve valves to their first position asshovvu in the drawings, and the piston is again-reversed in its movement.

The construction illustrated operates with efiiciencv with either low or high water pres sures. When the pressure is quite low, the disks 33 and 34 may not be brought together, and the shifting'of the valves will take place as soon as the tension of the spring overcomesthe live pressure on the puppet valve.

Not only do I have the assistance of the spring 37 to complete the movement or" the inlet valve but the initial movement of the puppet valve coming in contact with the sleeve valve tends to shift it and allow the i live pressure tolitsclf throw the valve to its opposite sect,

In the. construction illustrated, it will be noted that the exhaust valve is first shifted,

and in this I believe my construction difiers from all other types of water meters in thet, in the older. constructions either the inlet valve is given the initial movement or both valves are shifted simultaneously. In my construction, I completely;reverse be exheu'st before the inlet valve 'is shii b While compound valve structures not new, I believe it has been customary to foini the seat for such valves by a peripheral flange between the parts of the valve. In my construction, however, it will he noted that all. of the valves are provided with ground seats and thus there is no danger leakage, as there is where a peripheral seer {in is provided. By seating thesssisting spring 34 within the hollow piston, K economies specs in the length of the motor, and reason of the construction i sin able to pro vide a comparatively large spring: which very slightly subject to crysiullizstia danger frequently experienced with coiled springs of small diameter.

While I have illustrated cons" with i nee the cylindrical iy ciprocutmg motor, it will he obvious the construction of valve is equally up csiele to the rotary type of such met-sis iu the use of the term reciprocotin' 'zyp cj i wish it to be understood as applying to st? hot 1 forms of motor. p

Having thus described my inventiomu'hot I claim as new and desire to secure 0: lit-t ters Patent, is

lyln a machine or" the character spec" lied, :1 motor casing and a piston or" i to reciprocate therein, forming alteumlel v pressure and exhaust chambers in said cars lilg, s valve chamber with passageways on each side of said piston from the piston chamber to the valve chamber QltGI'mil iv serving as inlet and exhaust ports, an inlel; and an exhaust pipe for said valve chamber, and a double compound valve in said valve chamber comprising an exhaust valve mounted inside of the inlet valve, said inlet valve having seats for/the exhaust valve, and mechanism intermediate said compound valve and the piston whereby said valve may be actuated at thccompletion of the pis m stroke in either direction to shift the val e to reverse the Water pressure from one side of the piston to the other. v

2. In amachine of the character specified, a motor casing and a piston adapted to re ciprocete therein, forming alternately pressure and exhaust chambers in said casing valve chamber with passageways on side of said piston from the piston chem her to the valve chamber alternately serving; as inletand "exhaust ports, an inlet linden exhaust pipe for said valve chamber, and 2; double compound valve in said valve chem ber, comprising a double puppet exhaustvalve with a double puppet inlet valve mounted to slide thereon, with the. exhaust valve seats upon the inlet valve, and mechanism intermediate said compound valve and the piston whereb said valve may-be actuated at the comp etion of the piston stroke in eitherdirection to shift the valve to reverse the Water-pressure from one side of the piston to the 01 her. 3 I

3. In a machine of the character specified, a motor casing and a piston adapted to reciprocate therein, forming alternately pres-' sure and exhaust chambers to said casing, a valve chamber with passageways on each side of said piston from the piston chamber 'to the valve chamber alternately serving as A inlet and exhaust ports, an inletand an exhaust pipe for said valve chamber, and a double compound valve in said valve chamher, a double acting spring mounted in said piston, and plates normally separated by said spring, one of said plates adapted to be engaged by said compound valve at one end of the piston stroke, and a connecting rod to connect said valve and the other plate at the other end of the piston stroke to shift the valves to reverse the piston movement.

Y l. in a device of the character specified, embodying a motor chamber with a reciprol eating piston, a double acting compdifihd valve comprisin a double puppet exhaust valve and a ouble puppet inlet valve mounted thereon to slide axially, the double puppet exhaustvalve having positive seats upon the inlet valve whereby the shifting of the exhaust valve will assist in unseating the inlet valve. 5. In a device-of the character specified, embodying a motor chamber with a reciproeating piston, a double acting compound valve comprising a double puppet exhaust valveand a double pup et; inlet valve j mounted thereon to slide axially, the double puppet exhaust valve having positive seats upon the inlet valve whereby the shifting of the exhaust valve 'Will fassistin u'nseating her to the valve chamber alternately serving the inlet valve, and a spring interposed be tween the exhaust valve and the piston to assist in shifting the inlet valve upon the completion of the piston stroke in either direction. v

6. In a device of the character specified, embodying a motor chamber with a reciproeating piston, a double-acting compound valvecomprising a double puppet exhaust valve and a double puppet inlet .valve mounted thereon to slide axially, the double Y puppet exhaust valve having positive seats upon the inlet valve whereby the shifting of the exhaust valve will assist in unseating the inlet valve, a double acting spring- -mounted in said piston, and plates normally separated by said spring, oneof said plates adapted to be engaged by said compound valve at one G11(ivOf-.tll(-} piston stroke, and a connecting rod to connect said valve and the other plate at the-other endof the piston stroke to shift the valves to reverse the pis-' ton movement. Q I

.7 In a machine of the hharacter specified, a motor casing'and a piston adapted-to re- 70- ciprocate therein, forming alternatoly'pi'es- 'sure and exhaust chambers to said casing, a

valve chamberwith passageways oi'i' each q side of said-piston from :the p ston chain.-

as inlet and exhaust ports; ii double compound valve and anfinlet and aneXhaust pipe for said. valve chamber, a double actmg spring mounted in said piston, and plates normally separated by said spring, one of 80.

said plates adapted to he engaged bysaid compound valve. at one end of the piston; j stroke, and a connecting rod to connect said] 3 valve, and the other plate at the other end of the piston stroke to shift the valvesfto 85.

reverse the piston movement.

Attest: Mansion ALLEN,

ANNA F. Dinner;

uaanv n, in'wilti' 3 

